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BLOWER DATA
SL280DF060NV36B BLOWER PERFORMANCE (less filter)
0 through 0.8 in. w.g. (Heating) and 0 through 1.0 in. w.g. (Cooling) External Static Pressure Range
Heating Speed
1
DIP Switch
Settings
+24%
+18%
+12%
+6%
Factory Default
–6%
–12%
–18%
Cooling Speed
1
DIP Switch
Low
Settings
+
730
Factory Default
665
–
600
Cooling and heating speeds are based on a combination of DIP switch settings on the furnace control. Refer to Installation Instructions for specific DIP Switch Settings.
1
Factory default setting.
2
NOTES - The effect of static pressure is included in air volumes shown.
First stage HEAT is approximately 91% of the same second stage HEAT.
First stage COOL (two-stage air conditioning units only) is approximately 70% of the same second stage COOL speed position.
Continuous Fan Only speed is selectable at 28% and 38% of the selected second stage cooling speed - minimum 380 cfm.
Lennox iHarmony
Zoning System Applications - Minimum blower speed is 380 cfm.
®
SL280DF060NV36B BLOWER MOTOR WATTS (COOLING)
Cooling Speed
1
DIP Switch
Settings
0
0.1
+ Setting
Low
51
Med-Low 58
Cooling
Speed
Med-High 74
High
79
102 136 156 182 207 228 252 279 209 246 293 335 362 399 441 476 508 531 547
Factory Default
Low
45
Med-Low 46
Cooling
Speed
Med-High 58
High
66
– Setting
Low
36
Med-Low 39
Cooling
Speed
Med-High 41
High
51
First Stage Heating Speed - cfm
1065
1010
965
910
855
795
745
695
First Stage Cooling Speed - cfm
Medium-Low
Medium-High
780
705
635
Motor Watts @ Various External Static Pressures - in. wg.
First Stage
0.2
0.3
0.4
0.5
65
86
106 125 148 160 179 196
71
98
115 133 157 177 190 215 112 146 174 200 232 261 288 317 338 372 394
87
115 130 156 178 203 215 239 152 191 228 265 295 324 355 386 416 445 477
56
73
92
109 128 145 158 175
57
77
99
119 134 151 168 188
70
90
111 134 152 169 191 213 133 146 176 205 230 260 289 320 345 370 406
87
106 129 147 174 198 216 239 154 191 228 263 294 332 360 391 413 447 475
47
65
81
98
113 134 146 162
52
69
88
106 124 137 152 171
55
75
96
111 131 147 168 187
64
89
106 130 153 169 185 211 111 150 189 217 244 270 295 327 348 374 405
HEATING
COOLING
High
Low
2
840
960
1000
760
870
910
685
765
810
0.6
0.7
0.8
0
0.1
89
116 143 177 193 224 251 269 297 321 350
71
95
88
113 139 170 194 216 245 268 290 311 336
58
76
69
91
86
111 139 167 189 216 240 265 289 313 341
Page 3
Second Stage Heating Speed - cfm
1175
1105
1055
990
930
880
820
760
Second Stage Cooling Speed - cfm
Medium-Low
Medium-High
1090
990
885
Second Stage
0.2
0.3
0.4
0.5
0.6
118 143 166 188 212 233 256 277 303
99
118 144 165 184 202 223 246 267
110 138 155 183 203 224 246 267 291
High
2
1215
1350
1095
1220
985
1095
0.7
0.8
0.9
1.0
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